baber/WOPTO huggingface dataset:
Patent GB-867449-A (GB)
Title: Synthetic resins having anion-exchange properties
IPC: C08F2/00
Filed: 1958-12-02
Abstract: Water-insoluble anion-exchange resins are prepared by condensing (1) a benzene-insoluble vinyl-aromatic polymer cross-linked with up to 30% (calculated on the monomer) of a polyethylenically unsaturated cross-linking agent with (2) a N-(halogenoalkyl)-imide in the presence of a swelling agent and a Friedel-Crafts catalyst, and then saponifying.  Copolymers of styrene, substituted styrenes, and vinyl naphthalene with divinyl benzene toluene, ethyl benzene, and vinylether, and trivinyl benzene, ethylene glycol dimethacrylate or diacrylate, dialkyl maleate, or a polyester of e.g. ethylene glycol and maleic acid, which may have a gel or sponge structure are used with for example N-chloromethyl succinimide, phthalimide, a diglycolic acidimide, and N-bromomethyl phthalimide.  Friedel-Crafts catalysts mentioned are, stearic chloride, zinc bromide and chloride, and aluminium chloride and concentrated sulphuric acid, and the swelling agents may be ethylene dichloride or dibromide, methylene chloride, carbon tetrachloride, tetrachorethane, trichloro- or tribromoethylene, 1, 1, 2-trichlorethane, pentachloroethane, dichloro-, trichloro, tetrachloro- and pentachloropropanes and 1, 2, 3, 3-tetrachloropropylene.  The reaction takes place at elevated temperatures and the imidoalkyl intermediate is separated and saponified by alkaline or acid hydrolysis or by conversion with hydrazine and subsequent acid hydrolysis.  The products after isolation and purification are alkylated, with for example alkyl halides, dialkyl sulphates, alkylene oxides, halohydrins, polyhalogen compounds, or epihalohydrins, or a mixture of formaldehyde and formic acid.  Secondary, tertiary or quaternary amino derivatives or mixtures thereof may be obtained. Examples describe the reaction of pearl copolymers of styrene, divinyl benzene and ethyl styrene with N-(chloromethyl)-phthalimide, chloromethyl-diglycolic acid imide, N-(chloromethyl)-succinimide and the saponification of the products to yield anion exchange resins.  Specifications 654,706, 679,851, 679,852, 700,470, 714,366 and 779,994 are referred to.ALSO:Hydroxy methyl-digylcolic acid imide is prepared by heating diglycolic acid imide in an aqueous formaldehyde solution (40% by vol) and concentrating in vacuum at 40-45 DEG C.  The diglycolic acid imide is distilled from diglycolic acid neutralised with ammonia. Specifications 654,706, 679,851, 679,852, 700,470, 714,366 and 779,994 are referred to.
Patent GB-1007909-A (GB)
Title: A process for zone-by-zone melting of a rod of crystalline material
IPC: C30B13/20
Filed: 1964-09-23
Abstract: 1,007,909. Zone - melting. SIEMENS SCHUCKERTWERK A.G. Sept. 23, 1964 [Feb. 8, 1964], No. 38883/64. Heading B1S. A rod 2 of silicon having a diameter of 30-40 mm. attached to a seed 5 having a diameter of 5-6 mm. is zone-melted using a cylindrical induction coil 3 at a frequency of 1À3-1À8 mc/s. A molten zone may be passed through the rod a plurality of times, an incandescent zone being passed in the opposite direction between each passage of the molten zone. The silicon may be deposited from gaseous material.
Patent GB-1317967-A (GB)
Title: Null adjuster for magnetically operated torque motors
IPC: H01F7/122
Filed: 1970-08-12
Abstract: 1317967 Electromagnets ABEX CORP 12 Aug 1970 [29 Jan 1970] 38898/70 Heading H1P A magnetic actuator comprises an armature 31 centrally pivoted in air gaps between its ends 33, 34 and poles 37, 37<SP>1</SP>; 38, 38<SP>1</SP> in which a polarizing flux is generated by permanent magnets (Fig. 4, not shown) superimposed on a control flux generated by coils 39, 39<SP>1</SP>; 40, 40<SP>1</SP>, which increases flux in one pair of gaps 35, 36<SP>1</SP> and decreases it in pair 35<SP>1</SP>, 36 and vice versa to attract and repel the opposed armature ends to produce rotation through a small arc against a spring (not shown) in a direction dependent on the polarity of energization. A tube mounted normally of the armature at its centre conveys a fluid flow diverted on deflection into either of two jets moving a piston to one end or the other of a cylinder; alternatively (Fig. 3, not shown) a similar rod with flattened end may valve a pair of opposed jets to alter the respective pressure drops to the environment. A null adjuster comprises a non-magnetic cap 11 of, e.g., aluminium or plastic fitting over the actuator housing and is rotatably movable thereon; clamping by a slotted base flange 15 and tangent screw 16. The top of the cap encloses a bar magnet 20 fixed with epoxy cement in a cavity 22. Adjustment of the cap by rotation or vertical movement additively or subtractively combined flux with that in gaps 35, 36 so that the armature assumes null position with the coils de-energized.
Patent GB-1533205-A (GB)
Title: Plasmin fractions and complexes thereof
IPC: A61K38/48
Filed: 1977-09-19
Abstract: 1533205 Complexes containing plasmin or plasminogen MICHAEL REESE RESEARCH FOUNDATION 19 Sept 1977 [24 Sept 1976] 38933/77 Heading A5B [Also in Division C3] Pharmaceutical compositions, which may be utilised in the intravenous treatment of a blood clot in the circulatory system, comprises a physiological saline solution of a substantially equimolar complex of a substance which forms with human plasminogen a complex useful for its fibrinolytic activity (preferably staphylokinase or streptokinase) with a plasmin light (B) chain (defined) having a site which shows serine protease activity. The complex is preferably of the reaction product of streptokinase with the plasmin light (B) chain having a site showing serine protease activity, or the reduction product of an equimolar complex of streptokinase with plasminogen or plasmin, which may have a bovine plasminogen activator activity, as measured on a casein substrate, of from 100 to 600 CTA units/nmole of protein.
Patent GB-999220-A (GB)
Title: Improvements in and relating to electromagnetic machines
IPC: H02K7/114
Filed: 1961-10-31
Abstract: 999,220. Motors combined with electro-magnetic couplings. E. COHEN, and S. ROTH. Oct. 31, 1961 [Jan. 30, 1961], No. 39006/61. Heading H2A. An electric motor has at each side of it an eddy current coupler, each having its own energizing coil, the two coils being arranged so that when they are energized in one manner their fields do not pass through the motor core but when they are energized in another manner they do. The latter energization may cause the motor to operate as a brake. The Figure shows an induction motor comprising a polyphase stator 7 and a rotor 13, the latter being mounted on a sleeve 14 rotatably mounted on the coaxial output shaft 6. The ends of the sleeve carry discs 15, 16 forming part of an eddy-current coupling comprising also the cup-shaped intermediate members 19, 20 mounted on the output shaft and neld coils 9, 10. The inside of the cups or (in Fig. 3, not shown) the outside of the discs 15, 16 are slotted and the field passes around the path shown by a chain line, normally cancelling in the motor core. However, by reversing the current in one field winding 9 or 10 the flux is diverted through the motor core so that the motor operates as a brake. Blades 26 on the rotor cause cooling air to circulate through the machine from 27 to 28 and further blades on the outside of the eddy-current discs 19, 20 can provide an additional air current at the ends (Fig. 3, not shown). A tacho-generator comprising a permanent magnet rotor 33 is incorporated in the machine.
Patent GB-939378-A (GB)
Title: Manufacture of amide compounds
IPC: C07C233/09
Filed: 1961-11-01
Abstract: Amides are prepared by reacting a methyl or ethyl ester of a fatty acid containing 12-30 carbon atoms with ammonia in the presence of 0,5 to 5% by weight of a fatty acid containing 8 to 30 carbon atoms at a temperature of about 275 DEG F. to about 375 DEG F. and a pressure of at least 100 p.s.i.g, the reaction being continued until the nitrile content of the product is less than 1.5% by weight.  The reaction period is preferably at least 7 hours and the pressure preferably at least 350 p.s.i.g.  The fatty acid catalyst preferably has a chain length corresponding to the chain length of the acid portion of the ester.  In examples the following reactions are described, the methanol or ethanol formed as by-product being distilled off: (1)-(3) methyl stearate to stearamide in the presence of stearic acid; (4) methyl oleate to oleamide in the presence of oleic acid; (5) methyl palmitate to palmitamide in the presence of palmitic acid; (6) methyl behenate to behenamide in the presence of behenic acid; (7) ethyl oleate to oleamide in the presence of oleamide; (8) methyl oleate to oleamide in the presence of stearic acid.
Patent GB-1169647-A (GB)
Title: A Method for Forming Anodic Oxide Film on Aluminium or Aluminium Alloy
IPC: C25D11/04
Filed: 1967-08-24
Abstract: 1,169,647. Anodizing. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. Aug.24, 1967 [Sept.5, 1966; Sept.30, 1966; Dec.16, 1966], No.39080/67. Heading C7B. A method of forming an anodic oxide film on the surface of aluminium or aluminium alloy comprises forming an anodic oxide film having a smaller thickness than that desired, then forming cracks over the whole region of the film by elongating the film in at least one direction, then again anodically oxidizing to increase the thickness of the film. Preferably the second oxidation does not increase the film thickness more than 10 times the thickness at the time of crack formation. The cracks may be formed by rolling with rollers having smooth or ribbed surfaces, or by temperature change, crack formation resulting from the different expansion co-efficients of the film and its base. The process of film cracking followed by further anodizing may be repeated to form a film having a high density of cracks when the base is bent, the film having improved insulating properties. Sulphuric acid, oxalic acid, phosphoric acid, chromic acid, sulphamic acid, boric acid or ammonium borate may be used in the anodizing electrolyte.
Patent GB-1175565-A (GB)
Title: Improvements in or relating to the treatment of Spent Sugar-Beet Cossettes
IPC: C13B10/08
Filed: 1967-08-25
Abstract: 1,175,565. Producing animal feeds from spent sugar-beet cossettes. BELOIT CORP. 25 Aug., 1967 [29 Sept., 1966], No. 39153/67. Heading A2B. In a method and apparatus for treating spent sugar-beet cossettes to produce an animal feed, e.g. a cattle feed, the spent cossettes are passed, from a bin 10, Fig 1, through fibrillating mechanism 2, e.g. of the type described in U.S.A. Specification 3,387,796, then through a screw-press 3, e.g. of the type described in U.S.A. Specification 3,126,818, which removes water, and then, if necessary, through a dryer 6, e.g. of the type described in U.S.A. Specification 3,363,665. The de-watered pulp from the screw-press 3 may be formed into pellets.
Patent GB-1066216-A (GB)
Title: Stabilization of halogen containing acrylonitrile polymers
IPC: C08K5/57
Filed: 1963-10-07
Abstract: Compositions suitable for spinning into fibres or for coating comprise a copolymer comprising units of acrylonitrile and a vinyl or vinylidene halide, and if desired one or more other monoethylenically unsaturated monomers, the copolymer comprising at least 35% by weight of acrylonitrile units; or a blend of at least one homopolymer or copolymer of acrylonitrile with a polyvinyl or polyvinylidene halide the blend comprising at least 35% by weight of acrylonitrile units; together with a solvent therefor and, as a stabilizer, from 1 to 5% by weight, based on the weight of polymerized vinyl or vinylidene halide, of dibutyl tin oxide.  Suitable solvents include dimethyl acetamide, dimethyl formamide, dimethyl sulphoxide, nitromethane and ethylene carbonate.  The halide component of the polymers or blends is preferably (poly) vinyl or vinylidene chloride; vinyl fluoride, vinyl bromide and 1-chloro-1-bromo-ethylene are also disclosed. Optional comonomers include acrylic, chloroacrylic and methacrylic acids and esters thereof, methacrylonitrile, acrylamide, methacrylamide and chloroacrylamide and alkyl derivatives thereof, methyl vinyl ketone, vinyl carboxylates, N-vinylimides, methylene malonic esters, itaconic, citraconic and mesaconic acids and anhydrides and esters thereof, alkyl vinyl ethers, vinylsulphonic acid, styrene, vinylnaphthalene, vinylcarbazole, vinylfuran, vinylpyridines, vinylimidazoles, vinylpyrrolidone and vinylpiperidone. In an example, a spinning solution comprises the tin stabilizer and a blend of polyvinyl chloride and an acrylonitrile-vinyl acetate copolymer dissolved in dimethylacetamide. Compositions containing an acrylonitrile-2-methyl-5-vinylpyridine copolymer are also disclosed. The compositions may be prepared by adding the polymer or polymer blend and the stabilizer to the solvent, mixing and heating to form a homogeneous solution.ALSO:Knitted fibres composed of a polyvinyl chloride-acrylonitrile/vinyl acetate copolymer blend stabilised with dibutyl tin oxide (which also serves as a stabiliser for basic dye light fastness) are dyed by standard techniques with 4 basic dyes and tested for dye light fastness.  The dyes used are Maxilon Red, Sevron Yellow 3RL, Sevron Red L and Sevron Blue BGL. The stabilising effect of the dibutyl tin oxide is compared with that of dimethyl tin oxide, diphenyl tin oxide, tetrabutyl tin, dibutyl tin dilauryl mercaptide and barium-cadmium laurate.
Patent GB-1123698-A (GB)
Title: Improvements in or relating to a device for sensing pneumatically the yarn end on a wound bobbin in automatic winding machines
IPC: B65H67/08
Filed: 1966-09-07
Abstract: 1,123,698. Winding yarns. ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI. 7 Sept., 1966 [8 Sept., 1965], No. 39901/66. Heading D1J. As the package 2 increases in size it causes its tiltable holder 1 to rock in the bearings 3 and cause a lever arrangement 6, 7, 8, 10, 11 to move an extension 12 mounted on the mouth of a yarn end sensing suction tube 9, the arrangement being such that substantially the same suction effect is created on the wound bobbin irrespective of its increasing diameter. The arms 10, 14 form a parallelogram with the extension 12. The suction effect is used to find the yarn end in event of breakage.
Patent GB-950360-A (GB)
Title: Improvements in vehicle disc brake assemblies
Inventor: STIRLING WALTER ROBERT
IPC: F16D55/2255
Filed: 1961-11-08
Abstract: 950,360. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Oct. 23, 1962 [Nov. 8, 1961], No. 40047/61. Headings F2E and F2F. A vehicle disc brake assembly comprises brake pads 16, 17 mounted on levers 13, 14 pivoted at 24, 25 to a fixed support 10 so as to lie one on each side of the brake disc 12 and coupled together through a link 15 so that swinging movement of either one of them about its pivot is transmitted to the other, one brake pad unit 17 being directly pivotally mounted at 38 on one lever 14 and the other brake pad unit 16 being mounted on the piston 33 of a fluid pressure wheel brake cylinder 31 pivotally mounted on the other lever 13, so that pressure in the wheel brake cylinder applies one pad directly to the disc and creates a reaction thrust acting on the levers to apply the other pad to the disc, the pads aligning themselves with the disc surfaces independently of the positions of the levers. The piston 33 is provided with a spigot portion 35 adapted to engage a slot in the metal backing plate 34 of the brake pad unit 16.
Patent GB-975020-A (GB)
Title: Improvements in or relating to fluid-operated control devices
IPC: F15C1/00
Filed: 1960-11-22
Abstract: 975,020. Punching. R. E. BOWLES, and R. W. WARREN. Nov. 22, 1960 [Nov. 25, 1959; Jan. 26, 1960; Oct. 19, 1960], No. 40128/60. Heading B3W. [Also in Divisions F1, F3, G3 and G4] A fluid switch or amplifier, (see Division G3), comprises a main jet stream which can be biased along an adjacent surface by a boundary layer effect. Fig. 4 shows the invention applied to the control of a punch 59 operating on a strip of metal or other material 52. A set of three of asymmetrical fluid switches 15, 17, 18 and 151, 171, 181 and 152, 172, 182 are arranged in series and in parallel with a fourth fluid switch 153, 173, 183. The power jet from the nozzle 15 would exhaust out of passage 18 but the presence of metal strip between the rollers 53 gives rise to a control signal at nozzle 16 so that the power jet is diverted to passage 17. The power jet passes to passages 171, 172 only if the nozzles 161, 162 impose control signals caused by ports 69, 69a being blocked by the palms of the operator's hands. A control signal is thus fed to the nozzle 163 so that the power jet from the nozzle 153 is diverted to the passage 173 and passes via conduit 70 to depress the piston 156 and actuate the punch 59. Specifications 970,985 and 975,021 are referred to.
Patent GB-403644-A (GB)
Abstract: 403,644. Ticket-printing machines. WOOD, A. W., 50, Harold Road, Upper Norwood, London. May 27, 1932. No. 15023. [Class 106 (iii)]. In ticket printing and issuing machines in which a perforated record strip is employed, the punches are carried by levers, arranged in a row transversely of the strip and operated by one or more selecting mechanisms, stepping mechanism for the strip being operated between the punching operations. The construction of recording attachment shown in sectional elevation in Figs. 1 and 4 and in the underneath plan view, Fig. 3, is used with ticket printing or marking and issuing machines as described in Specifications 297,132, [Class 106 (iii), Fares &c.], and 393,301. The record strip is fed from a feed spool 19a between the die plate 20 and the guiding plate 21, between the guide rollers 22, 23 geared together and over the reception spool 24. Punches 7 arranged transversely in a row are operated by levers 8 mounted on a fixed pin 2, each lever passing through a slot in the stem of the punch. The levers are normally pressed against a pin 3 by springs 9. Each lever with its punch is operated by one or more selecting mechanisms such as the cut away drum 12 which is adjusted according to the face value set, and the discs 10 with operating pins 11 which are set according to the class of ticket issued. The fare recording drum 12 only operates on five of the punches, the lever 36 operating one of the remainder when a new stage of a journey is reached, and the other remaining punch being operated to record the turning point of a journey. The operating pins 11 of the discs 10 engage the depending arms of the levers 8 when the discs are rotated, the shaft 4 on which they are fixed being adjustable lengthwise to move the pins into or out of register with the levers. The drum 12 is mounted on a frame 14 pivoted on the fixed pin 2 and set from the shaft 5 by toothed gearing. It is operated to punch the strip by fingers 17 which engage rollers 18 on the frame 14, the fingers being connected to the operating mechanism of the main machine. Between punching operations, the strip is fed forward by rotation of the feed roll 22 by ratchet gearing operated by the bell crank lever 32 having pin and slot connections to levers 34, 33 operated respectively by the cam 35 on the shaft 4 and the arm 12. The rewinding spool is also rotated through a light friction clutch.
Patent GB-1303148-A (GB)
IPC: G03G15/06
Filed: 1970-08-21
Abstract: 1303148 Measuring electrostatic potential XEROX CORP 21 Aug 1970 [29 Aug 1969] 40431/70 Heading G1U [Also in Division G2] An electrode 92, Fig.4, surrounded by insulating material 93 and an earthed screen 91 is periodically exposed, by a solenoid actuated shutter, Fig.3 (not shown) to an electrostatically charged surface forming part of a copying machine, (see Division G2) in order to measure the potential thereof. The output from the electrode 92 is amplified 81, 83, 84, and passed via a contact 85 which is closed for a short period commencing an appropriate period after the electrode is exposed to the charged surface, to store a potential on a capacitor 87 indicative of the potential of the charged surface. A suitable timing circuit, Fig.5 (not shown) is described for delaying the closure of contact 85 following energization of the shutter solenoid by a control pulse produced within the copying machine. The timing circuit also arranges that the potential of the closed shutter, which is earthed, is sensed at appropriate instants, to reduce drift in the first amplifier stage 81.
Patent GB-1071266-A (GB)
Title: Liquid-moving unit comprising a centrifugal pump and an electric driving motor therefor
Inventor: STEPNICA VLADIMIR
IPC: F04D13/06
Filed: 1963-10-15
Abstract: 1,071,266. Centrifugal pumps. SIGMUND PULSOMETER PUMPS Ltd. Oct. 6, 1964 [Oct. 15, 1963], No.40710/63. Heading F1C. [Also in Division H2] In order to provide lubrication and cooling in a unit comprising a centrifugal pump driven by an electric motor mounted on a common support, which unit may circulate water in domestic and other hot water installations, some of the pumped liquid is circulated from the pump housing 25, Fig. 1, through a filter 46 to a chamber 27 containing the motor rotor 38 and at least some of the bearings, and the liquid is drawn back into the housing by supplementary pump impeller vanes 49. The liquid passes to the chamber 27 through a stopped bore 47 in stationary shaft 29 and is withdrawn through the clearance 44 between the rotor 38 and the wall of chamber 27. It then unites with the main flow which discharges from the housing 25 through one or more ports 23 to a main outlet 21 separated from a main inlet 20 and associated port 22 by cross-webs (not shown). Flow through the port 23 may be controlled by an obturator 24. The filter may be of expanded metal or wire mesh and associated with a deflector 50. The liquid in the chamber 27 cools the rotor and lubricates and cools bearing surfaces between stationary thrust rings 41, 42 and rotary sleeves 35, 36 and between these sleeves and the shaft 29. Terminal connections and electrical leads may be disposed at the outer end of the motor casing 1. In an alternative embodiment, Fig. 2 (not shown), in which the rotor-impeller shaft is rotatably supported in two plain bearings with the impeller overhung, the lubricating and cooling liquid passes through the filter into an axial bore extending the whole length of the shaft, and then through one or more grooves in the inner surface of one bearing, the clearance between the rotor and chamber wall, and one or more grooves in the inner surface of the other bearing to the supplementary impeller vanes.
Patent GB-1432456-A (GB)
Title: Choke control unit for internal combstion engine
IPC: F02M1/12
Filed: 1973-08-30
Abstract: 1432456 Choke control unit CHRYSLER CORP 30 Aug 1973 [13 Oct 1972] 40921/73 Heading F1B A choke control unit for an I.C. engine with a carburetter 12 having a choke valve 18 in its air intake passage 20 responsive to a thermally responsive actuating member 24, comprises a first temperature responsive electric switch 50 which closes when its temperature attains a predetermined value, a temperature responsive time delay electric switch 52 in series with the first and arranged to open when its temperature exceeds a second higher predetermined value and a heating element 26 in series with the first switch 50 and the time delay switch 52 and adapted to be positioned in thermal relationship to the thermally responsive actuating member 24 to supply heat thereto for a predetermined time controlled by the second switch 52 when the first switch 50 is closed. The switch 52 includes a heater winding 54 which when energized through switch 50 causes switch 52 to open after about four minutes; but when energized via a resistor 64 (i.e. when switch 50 is open, at low ambient temperature) takes longer to cause switch 52 to open. The lower current passing through element 26 when switch 50 is open ensures that the choke value 18 takes longer to open. Switch 50 is chosen to close at 68F and open at 48F. A further switch 72, which is engine operation responsive, e.g. inlet vacuum responsive) may be included to prevent energization of the heating element 26 until the engine is in operation. The resistor 64 may be omitted so that, when the switch 50 is open, the actuating member 24 is heated only by engine heat.